Caffeine has a half life of roughly 2.5 to 4 hours. Which means that in that amount of time half of the caffeine will have been metabolized by your body. Caffeine only last a few hours depending on the consumption and your activity.
The amount of time spent playing video games has a negative correlation with academic performance (Gentile, D. 2004).On the other hand children also learn obsessive language and violent behavior from these violent video games which disturb child's mental status.
The study is the first to look at the playerâs psychological experience with video games instead of focusing solely on its content. Researchers found that failure to master a game and its controls led to frustration and aggression, regardless of whether the game was violent or not.